Table 1 Participants Inclusion and Exclusion Criteria

Men who have sex with men

1. Have regular of occasional sexual prelateship with other men (man)

2. Had sex with a man during past 3 months

3. Aged 18 and above

1. Refuse to provide informed consent

2. Mentally ill or severely ill

3. Not a resident of participating region (have an address and lived in the region during the past 6 months)

Female sex workers

1. Exchange sex for goods or money

2. Have exchanged sex for goods or money during past 3 months

3. Aged 18 and above

1. Refuse to provide informed consent

2. Mentally ill or severely ill

3. Not a resident of participating region (have an address and lived in the region during the past 6 months)

People who inject drugs

1. Inject illicit drugs

2. Have injected drugs during past 3 months

3. Aged 18 and above

1. Refuse to provide informed consent

2. Mentally ill or severely ill

3. Not a resident of participating region (have an address and lived in the region during the past 6 months)